4 切削負荷を低減するポジティブ切れ刃形状と耐⽋損性を重視した新素材の採⽤で ⾼硬度鋼に対し⻑寿命で⾼精度な切削加⼯を実現しました Sharp cutting edge with reduced cutting load and new material with fracture resistance realizes long tool life and high precision for hardened steel ポジティブ刃先形状による切削負荷低減、新素材の採⽤で ⾼硬度鋼切削加⼯でも⽋けない切れ刃形状 Cutting load is reduced by positive cutting edge and by adopting a new material Super micro grain carbide prevent chipping even with hardened steel 切削負荷が⾼くなるネガティブ刃先形状 Negative cutting edge shape with high cutting load MRBSH230SF MRBSH230SF 一般的な高硬度エンドミル General end mill for hardened steel 通常のシャンク⻑ Normal shank length φd−0.001 −0.003 公差レンジ Tolerance range 0.002ｍｍ 突き出しを短くでき、⾼剛性状態での加⼯が可能 Possible to machining with high rigidity, with short tool overhung ⼯具突き出しが⻑く、低剛性状態 Tool overhung length is long, and tool rigidity is low Feature 2-1 Feature 2-2 Feature 2-2 切削性向上 Improved machinability 加⼯精度向上 Improved cutting accuracy ⾼精度焼きばめチャックに対応 Compatible with high accuracy shrink-fit chuck 形状 切れ刃 Shape Cutting edge 形状 最適な突き出し⻑ Shape Optimal overhung length 形状 ⾼精度なシャンク Shape High accuracy shank ポジティブ刃先 Positive cutting edge ネガティブ刃先 Negative cutting edge 切れ刃形状 Cutting edge shape 切れ刃形状 Cutting edge shape ショートシャンク short shank 70HRCの高硬度鋼でも⻑寿命で高精度 High precision and long tool life even for hardened steel up to 70 HRC
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